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spi: au1550: Simplify au1550_spi_setupxfer()

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SPI core validates both bits_per_word and speed_hz transfer parameters and
defaults to spi->bits_per_word and spi->max_speed_hz in case these per
transfer parameters are not set. This can simplify a little the
au1550_spi_setupxfer() as there is need to check only for valid
"struct spi_transfer" pointer.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jarkko Nikula 2015-09-15 16:26:18 +03:00 committed by Mark Brown
parent 6ff33f3902
commit 0beb0a6da8
1 changed files with 5 additions and 6 deletions
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11
drivers/spi/spi-au1550.c
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@ -233,13 +233,12 @@ static int au1550_spi_setupxfer(struct spi_device *spi, struct spi_transfer *t)
unsigned bpw, hz;
u32 cfg, stat;
bpw = spi->bits_per_word;
hz = spi->max_speed_hz;
if (t) {
if (t->bits_per_word)
bpw = t->bits_per_word;
if (t->speed_hz)
hz = t->speed_hz;
bpw = t->bits_per_word;
hz = t->speed_hz;
} else {
bpw = spi->bits_per_word;
hz = spi->max_speed_hz;
}
if (!hz)